On-Board Diagnostic System Description
WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
HVAC control module detects malfunction, which may occur in the following area. When HVAC control module detects any malfunction, the REC (recirculation) indicator lamp (3) flashes on and off continuously after turning ignition switch to ON position.
Abnormality exists (when air intake selector is operated while "REC" indicator lamp is flashing), "FRE" indicator lamp lights for 15 seconds and then "REC" indicator lamp flashes.
- Outside temperature sensor
- Inside temperature sensor
- Sunload sensor (short circuit)
- Wheel speed sensor
- CMP sensor
- CAN communication line
- Serial communication line
- A/C evaporator temperature sensor
- ECT sensor
- Temperature control actuator
- Air flow control actuator
- Air intake control actuator
- Temperature selector of HVAC control module
- Blower speed selector of HVAC control module
DTC can be checked by either one of the following ways.
- DTC can be checked by using SUZUKI scan tool (2) connected to DLC (1).
- Without using SUZUKI scan tool, DTC can be checked by reading the flashing pattern of both the FRE (fresh air) indicator lamp (3) and the REC (recirculation) indicator lamp (4).
- Current DTC and history DTC by pushing DEF (defogger) switch (5) when DTC displayed by HVAC control module.
- During indication of current DTC, DEF (defogger) indicator lamp (6) is OFF. However DEF indicator lamp (6) is ON during indication of history DTC.
- History DTC is such DTC which HVAC control module saves in its memory when it detects current DTC for 60 seconds or more continuously.